How much is four fifths to the power of 2010 multiplied by minus five fifths to the power of 2011

How much is four fifths to the power of 2010 multiplied by minus five fifths to the power of 2011


Original formula = (4 / 5) ^ 2010 * (- 5 / 4) ^ 2011
=(4/5)^2010*(-5/4)^2010*(-5/4)
=[(4/5)*(5/4)]^2010*(-5/4)
=-5/4